Inserted-tooth fastening for ice-plows



\ UNITED STATES l PATENT OFFICE.

`JOHN GEORGE BODENSTEIN, OF ISTAATSBURG, NEW YORK.

INSERTED-TOOTH FASTENING FOR ICE-PLOWS.

SPECIFICATION forming part of Letters Patent No. 295,724, dated March 25, 1884.

Application filed January 9, 188 4. (Model.)

' responding parts in all the figures.`

Figure l is aside elevation of a part of an ice-plow to which'my improvement has been applied, parts being broken away. Fig. 2 is a sectional front elevation of the saine, taken through the line m x, Fig. l. Fig. 3 is a perspective view of one part of the fastening.

The object of this invention is to promote convenience and security in fastening inserted teeth to the beams of ice-plows, and allow the said teeth tobe readily adjusted.

The invention consistsin an inserted tooth fastening for ice-plows, constructed with a stopplate having a perforated L-shaped head at its upper end and a shoulder atits lower end, and a wedge-key havingV a screw and a nut upon its upper end, to adapt it to be inserted between the parts of a plow-hea1n to clamp an inserted tooth against the edge of a plowplate section, as will be hereinafter fully described.

A represents the plow-beam, which is Inade in two parts placed at such a distance apart as to receive between them the plowplate sec tions B, and which are secured to each other and to the said platesections B by bolts C.

The forward edges of the platesections B are concaved upon the arcs of circles, and are grooved to receive the tongues B, formed upon the convened edges of the teeth D, so as to hold the said teeth from lateral` movement. The forward edge of each tooth D is concaved,

` and against it rests the convexed rear edge of the stopplate E, which is made of such a thickness as to fit between the partsof the beam A. l

Upon the upper end of the stop-plate E is formed an L-head, E', which rests upon the upper edges of the parts of the beam A. Upon one side of the lower end of the stop-plate E is formed a shoulder, E2,which rests against the lower edge of one of the parts of the beam Vback and the tooth D against the forward edge A. Bythisconstmaion thestoppiatenwin be held from moving either upward or downward. The lower end of the stop-plate E is beveled, so that it will not offer an obstruction to the ice-chips. The stop-plate E is made wider toward its upper end, to give the forward edge of the said plate a forward in` clination upward.

F isa wedge-key, which tapers upward from its lower end, and has its rear edge straight, to t against the straight forward edge of the stop-plate E. The forward edge ofthe wedge key F is conca-ved to fit against the conveXed rear edge of a plowplate section, B. Upon the upper end of the Wedge-key F is formeda screw, F', which passes through a hole in the forwardly-projecting end of the Lfhead E of 7o the stopplate E, and has a nut, G, screwed upon its upper end. With this construction, by tightening the nut G the, wedge-key F will be drawn upward, forcing the stop-plate E of the plow-plate section B, and clamping the tooth D securely in place. nut G and driving the wedge-key F downward, the tooth D will be released and can be adjusted or detached and replaced, as may be required.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. An inserted tooth fastening for iceplows constructed substantially as herein shown and described, and consisting of the stop-plate E, having a perforated L-head, E,

at its upper end anda shoulder, E, at its lower end, and the wedge-key'F, having screw F and nut G, as set forth. 1

2. The combination, with the plow-beam A, the plow-plate sections B7 and the inserted tooth D, of the stop-plate E, having a perforated L- head, E, at its upper end and a shoulder, E2, atits lower end, `and the wedgeliey F, having screw F and nut G, substan# tially as herein shown and described,whereby the inserted tooth will be securely held and 'can be readily adjusted and replaced, as set 100 forth.

JOHN GEORGE BODENSTEIN.

`Witnessesz J orIN F. RINcrwooD, EDWIN RIsLnY.

By loosening the 

